Skywatchers across the United States witnessed a total solar eclipse, SpaceX caught a giant rocket out of mid-air with a pair ...

Aurora chasers are on high alert for minor geomagnetic storm conditions on Dec. 25. Northern lights could be visible over ...

"I think of JuMBOs as a cross between stars and brown dwarfs - they would have been like stars had it not been for the radiation from the more massive stars, which has sculpted them to be more like ...

To start, there are the usual suspects, like electrons, protons, quarks and neutrinos. But if those particles aren't strange ...

The daring NASA spacecraft made its closest-ever approach to the sun at 6:53 a.m. EST (1153 GMT) on Christmas Eve (Dec. 24).

A brilliant fireball lit up the night sky over some southern states in the United States this weekend, but that was no meteor ...

Our sun is far from the flawless orb of light we see in the sky. Spacecraft observations have long shown that, up close, the ...

An object that orbits in the space between Jupiter and Neptune has chemistry that could tell us more about the birth of the ...

A bright streak of light in the pre-dawn skies above the U.K. could easily be mistaken for Santa Claus getting an early start ...

NASA's first two crewed Artemis moon missions have been pushed back to 2026 and 2027, respectively, and the move could have ...

This hovering helper 'bot was first introduced John Bryne's six-issue "The Man of Steel" miniseries released back in 1986, ...

It's been a busy year on the sun, as it officially entered the peak of its roughly 11-year cycle of activity, known as solar ...